16 Result(s)
within
Article
Congcong Du
-
Article
Open AccessGenerating active metal/oxide reverse interfaces through coordinated migration of single atoms
Identification of active sites in catalytic materials is important and helps establish approaches to the precise design of catalysts for achieving high reactivity. Generally, active sites of conventional heter...
-
Article
Open AccessTwisted-layer boron nitride ceramic with high deformability and strength
Moiré superlattices formed by twisted stacking in van der Waals materials have emerged as a new platform for exploring the physics of strongly correlated materials and other emergent phenomena1–5. However, there ...
-
Article
The proximity between hydroxyl and single atom determines the catalytic reactivity of Rh1/CeO2 single-atom catalysts
The local structure of the metal single-atom site is closely related to the catalytic activity of metal single-atom catalysts (SACs). However, constructing SACs with homogeneous metal active sites is a challen...
-
Article
Open AccessConfined Cu-OH single sites in SSZ-13 zeolite for the direct oxidation of methane to methanol
The direct oxidation of methane to methanol (MTM) remains a significant challenge in heterogeneous catalysis due to the high dissociation energy of the C-H bond in methane and the high desorption energy of met...
-
Article
RAD-UNet: a Residual, Attention-Based, Dense UNet for CT Sparse Reconstruction
To suppress the streak artifacts in images reconstructed from sparse-view projections in computed tomography (CT), a residual, attention-based, dense UNet (RAD-UNet) deep network is proposed to achieve accurat...
-
Article
Open AccessLayered Pd oxide on PdSn nanowires for boosting direct H2O2 synthesis
Hydrogen peroxide (H2O2) has the wide range of applications in industry and living life. However, the development of the efficient heterogeneous catalyst in the direct H2O2 synthesis (DHS) from H2 and O2 remains ...
-
Article
Hyper-SUMOylation of SMN induced by SENP2 deficiency decreases its stability and leads to spinal muscular atrophy-like pathology
Spinal muscular atrophy (SMA), a degenerative motor neuron disease and a leading cause of infant mortality, is caused by loss of functional survival motor neuron (SMN) protein due to SMN1 gene mutation. Here,...
-
Article
Engineering catalyst supports to stabilize PdOx two-dimensional rafts for water-tolerant methane oxidation
The treatment of emissions from natural gas engines is an important area of research since methane is a potent greenhouse gas. The benchmark catalysts, based on Pd, still face challenges such as water poisonin...
-
Article
Numerical modeling of a hybrid PCM-based wall for energy usage reduction in the warmest and coldest months
In this study, the effects of using hybrid PCM inside the wall on reducing heat transfer have been examined during the hottest (July) and coldest months (January) in three climate zones. The base wall thicknes...
-
Article
Characterization of dissolved organic matter derived from coal gangue packed in underground reservoirs of coal mines using fluorescence and absorbance spectroscopy
Organic and nitrogen pollutants in mine water could be removed effectively during the storage and transport of water in a coal mine underground reservoir packed with coal gangue through various water-rock inte...
-
Article
The ultraviolet–visible absorbance and fluorescence characterization of dissolved organic matter derived from the leaf litter of Populus simonii, Artemisia desertorum, Salix cheilophila, and Populus tomentosa
Dissolved organic matter (DOM) derived from leaf litter plays an important role in maintaining carbon (C) and nitrogen (N) circulation between soils and plants, energy flow, and signaling pathways for plant-mi...
-
Article
Lithium whisker growth and stress generation in an in situ atomic force microscope–environmental transmission electron microscope set-up
Lithium metal is considered the ultimate anode material for future rechargeable batteries1,2, but the development of Li metal-based rechargeable batteries has achieved only limited success due to uncontrollable L...
-
Article
Open AccessUltrastrong nanocrystalline steel with exceptional thermal stability and radiation tolerance
Nanocrystalline (NC) metals are stronger and more radiation-tolerant than their coarse-grained (CG) counterparts, but they often suffer from poor thermal stability as nanograins coarsen significantly when heat...
-
Article
Open AccessCeramic nanowelding
Ceramics possess high temperature resistance, extreme hardness, high chemical inertness and a lower density compared to metals, but there is currently no technology that can produce satisfactory joints in cera...
-
Article
Synthesis of three-dimensional ordered macroporous TiO2, Gd/TiO2 and their photocatalytic activity
In this paper, three-dimensional ordered macroporous (3DOM) TiO2 and Gd/TiO2 materials were synthesized by colloidal crystal templating process. The obtained samples were analyzed by field-emission scanning elect...
-
Article
Purification and evaluation of the enzymatic properties of a novel fructosyltransferase from Aspergillus oryzae: a potential biocatalyst for the synthesis of sucrose 6-acetate
A novel fructosyltransferase (AoFT) capable of synthesizing sucrose 6-acetate (S6A) from sucrose and glucose 6-acetate has been purified to homogeneity from Aspergillus oryzae ZZ-01. Its molecular mass was ~50 kD...
